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Meso-tetrathienylporphyrins: Steady-state emission and structural properties
, Babu Varghese
Published in
2006
Volume: 118
   
Issue: 5
Pages: 393 - 397
Abstract
meso-Tetra (2′- and 3′-thienyl)porphyrins and their Zn(II)-complexes were examined by steady-state fluorescence measurements. These molecules exhibit significant bathochromic shift in their emission bands with decreased quantum yields relative to their corresponding meso- tetraphenylporphyrin derivatives. The crystal structure of 5,10,15,20- tetrakis(3′-thienyl)porphinato zinc(II) shows planar and nonplanar stereochemical features of the macrocycle. One of the macrocycle shows nearly planar while the other exhibited predominantly saddle-shaped geometry. The extent of displacement of the β-pyrrole carbons in the nonplanar (saddle) conformation is as high as ±0422 Å. © Indian Academy of Sciences.
About the journal
JournalJournal of Chemical Sciences
ISSN02534134
Open AccessYes
Concepts (10)
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    Bathochromic shift
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    Metalloporphyrins
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    STEADY STATE EMISSION
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    THIENYLPORPHYRINS
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    Fluorescence
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    Measurements
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    Quantum theory
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    Stereochemistry
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    Zinc
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    Crystal structure